Sign In Start Free Trial
Account

Add to playlist

Create a Playlist

Modal Close icon
You need to login to use this feature.
  • Book Overview & Buying Scala Design Patterns
  • Table Of Contents Toc
Scala Design Patterns

Scala Design Patterns

By : Ivan Nikolov
4.2 (5)
close
close
Scala Design Patterns

Scala Design Patterns

4.2 (5)
By: Ivan Nikolov

Overview of this book

Scala has become increasingly popular in many different IT sectors. The language is exceptionally feature-rich which helps developers write less code and get faster results. Design patterns make developer’s lives easier by helping them write great software that is easy to maintain, runs efficiently and is valuable to the company or people concerned. You will learn about the various features of Scala and be able to apply well-known, industry-proven design patterns in your work. The book starts off by focusing on some of the most interesting features of Scala while using practical real-world examples. We will also cover the popular "Gang of Four" design patterns and show you how to incorporate functional patterns effectively. By the end of this book, you will have enough knowledge and understanding to quickly assess problems and come up with elegant solutions.
Table of Contents (14 chapters)
close
close
13
Index

The decorator design pattern


There are cases where we might want to add some extra functionality to a class in an application. This could be done via inheritance; however, we might not want to do this or affect all the other classes in our application. This is where the decorator design pattern is useful.

Note

The purpose of the decorator design pattern is to add functionality to objects without extending them and without affecting the behavior of other objects from the same class.

The decorator design pattern works by wrapping the decorated object and it can be applied during runtime. Decorators are extremely useful in the cases where there could be multiple extensions of a class and they could be combined in various ways. Instead of writing all the possible combinations, decorators can be created and they can stack the modifications on top of each other. The next few subsections will show how and when to use decorators in real-world situations.

Class diagram

As we saw previously with the adapter...

CONTINUE READING
83
Tech Concepts
36
Programming languages
73
Tech Tools
Icon Unlimited access to the largest independent learning library in tech of over 8,000 expert-authored tech books and videos.
Icon Innovative learning tools, including AI book assistants, code context explainers, and text-to-speech.
Icon 50+ new titles added per month and exclusive early access to books as they are being written.
Scala Design Patterns
notes
bookmark Notes and Bookmarks search Search in title playlist Add to playlist font-size Font size

Change the font size

margin-width Margin width

Change margin width

day-mode Day/Sepia/Night Modes

Change background colour

Close icon Search
Country selected

Close icon Your notes and bookmarks

Confirmation

Modal Close icon
claim successful

Buy this book with your credits?

Modal Close icon
Are you sure you want to buy this book with one of your credits?
Close
YES, BUY

Submit Your Feedback

Modal Close icon
Modal Close icon
Modal Close icon